EP 1041767 A3 20020515 - Authentication of electronic data
Title (en)
Authentication of electronic data
Title (de)
Authentifizierung elektronischer Daten
Title (fr)
Authentification de données électroniques
Publication
Application
Priority
JP 8823399 A 19990330
Abstract (en)
[origin: EP1041767A2] The authentication system has a signing station and a certifying station. The signing station divides the data to be transmitted into a plurality of blocks of data, a hash unit (2) creates a plurality of authenticators (4) by applying a different one-way function to each block. In the certifying station, a separating unit (7) divides the data into blocks, a hash unit (2) creates a plurality of authenticators (4) by applying a different one-way function to each block,and a comparing unit (8) compares the authenticators prepared anew with the authenticators separated from the received data and checks the authentication of the data from the comparison. <IMAGE>
IPC 1-7
IPC 8 full level
G06T 1/00 (2006.01); G09C 1/00 (2006.01); H04L 9/32 (2006.01); H04N 1/387 (2006.01)
CPC (source: EP US)
H04L 9/3236 (2013.01 - EP US); H04L 9/3247 (2013.01 - EP US); H04L 9/50 (2022.05 - EP); H04L 9/50 (2022.05 - US); H04L 2209/125 (2013.01 - EP US); H04L 2209/20 (2013.01 - EP US)
Citation (search report)
- [XY] EP 0781003 A2 19970625 - GEN INSTRUMENT CORP [US]
- [XA] US 5768382 A 19980616 - SCHNEIER BRUCE [US], et al
- [A] US 5757919 A 19980526 - HERBERT HOWARD C [US], et al
- [A] WO 9907149 A1 19990211 - SCIENTIFIC ATLANTA [US]
- [Y] EP 0822720 A1 19980204 - THOMSON MULTIMEDIA SA [FR]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1041767 A2 20001004; EP 1041767 A3 20020515; EP 1041767 B1 20041124; DE 69922157 D1 20041230; DE 69922157 T2 20050414; JP 2000286836 A 20001013; US 7512801 B1 20090331
DOCDB simple family (application)
EP 99307624 A 19990928; DE 69922157 T 19990928; JP 8823399 A 19990330; US 40608799 A 19990924